Interesting, but I can't think of a situation where I'd need it. I carry my helmet around as a status symbol. "Yes, I rode my bike here. You can, too."
Foldable bike helmet.
Not sure how sound this is but found it on the awesomer.
http://theawesomer.com/foldable-bike-helmet/149524/
indeed. i have no reason to doubt that it works as a bike helmet, but i don't see the utility. i do see the awesomeness, though.
Cool. But it seems like it would need to be built relatively heavily to keep all those little hinges working right for any length of time. I like light.
"Is that a helmet in your handlebar bag, or are you just happy to see me?"
Personally, if I wanted a foldable helmet, I'd go olde schoole:
Wow, could they maybe add just a little venting to that thing?
I want a helmet that turns into a bike, transformers-style. It must also be sentient, should have a lovely speaking voice, and assist in vanquishing the forces of evil.
anything on a bike assists in the vanquishing of evil